Patents by Inventor Marco Graf

Marco Graf has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20230231400
    Abstract: A method and device for reducing voltage loads of semiconductor components of an inverter. The method includes: ascertaining a request to charge a battery of an electric system including the battery, the inverter, and an electric machine. The inverter including a series connection including a first and a second semiconductor component, and being configured to convert a direct voltage provided by the battery into an alternating voltage for the electric machine, and adapt a gate voltage of the first semiconductor component and/or of the second semiconductor component to interrupt a current flow between the battery and the electric machine during the charging. A voltage load of a gate oxide layer of the semiconductor components is reduced by decreasing the gate voltages of the first semiconductor component and of the second semiconductor component and/or a voltage load of a drain-source path of the semiconductor components being matched to one another.
    Type: Application
    Filed: January 17, 2023
    Publication date: July 20, 2023
    Inventors: Karl Oberdieck, Hadiuzzaman Syed, Manuel Horvath, Marco Graf, Sebastian Strache, Stephan Schwaiger
  • Patent number: 10185858
    Abstract: In order to increase safety, a computer-implemented method is proposed for determining the position of a lift cabin in a lift shaft with the aid of a coding device, which comprises a code band as a marking, wherein the position is determined analytically by means of an algorithm on the basis of the code of the marking, wherein an extrapolated position is determined from the stored positions and the instant of the recording and, in turn, a coding pattern to be compared in relation to the recording is calculated by inverting the algorithm.
    Type: Grant
    Filed: April 13, 2016
    Date of Patent: January 22, 2019
    Assignee: CEDES AG
    Inventors: Michael Schatt, Marco Graf
  • Patent number: 9956330
    Abstract: A medical drainage tube for treating wounds with negative pressure includes a suction tube, a suction connector, and a ventilation sleeve. The suction tube includes a suction lumen, and a ventilation lumen including a lumen outer wall and an opening. The ventilation sleeve is arranged at the opening to surround the suction tube. The ventilation sleeve includes a sleeve wall including a sleeve inner wall arranged towards the suction tube, an annular groove arranged in the sleeve inner wall, a filter compartment arranged in the sleeve wall, a bacterial filter arranged in the filter compartment, and an air inlet arranged in the filter compartment. The annular groove communicates with the opening. The bacterial filter communicates with the annular groove. The air inlet connects the bacterial filter with the atmosphere. A part of the ventilation lumen between the annular groove and a proximal end of the suction tube is sealed off.
    Type: Grant
    Filed: August 15, 2013
    Date of Patent: May 1, 2018
    Assignee: ASSKEA GMBH
    Inventors: Sven Hertwig, Marco Graf
  • Patent number: 9704010
    Abstract: A computer-implemented method for determining the position of a lift cabin in a lift shaft with the aid of a coding device, in which method is at least one of a section of the code band and the bearing device is recorded with an optical detection device as a pixel image in which the pixel image is larger than the position marker, the pixel image is processed and a binary code is decoded by means of an algorithm and converted into a position indication, a checksum of the position marker, which is formed by at least one of the binary code and grayscale values of the position marker, is compared to a predetermined value, and one of a barcode and a 2D code calculated from the position indication using an inverse of the algorithm and is compared with at least one recorded row outside of the position marker.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: July 11, 2017
    Assignee: Cedes AG
    Inventors: Michael Schatt, Marco Graf
  • Patent number: 9558388
    Abstract: In order to increase safety, a computer-implemented method is proposed for determining the position of a lift cabin in a lift shaft with the aid of a coding device, wherein a section of the code band and/or of the bearing device is recorded with an optical detection device as a pixel image consisting of pixels and the instant of the recording being measured and assigned to the pixel image, wherein the position is determinable analytically from position markers of the code band by way of an algorithm and wherein at least one checking method which uses, inter alia, a calculated extrapolated position is carried out.
    Type: Grant
    Filed: April 13, 2016
    Date of Patent: January 31, 2017
    Assignee: Cedes AG
    Inventors: Michael Schatt, Marco Graf
  • Publication number: 20160289041
    Abstract: In order to increase safety, a computer-implemented method is proposed for determining the position of a lift cabin in a lift shaft with the aid of a coding device, which comprises a code band as a marking, wherein the position is determined analytically by means of an algorithm on the basis of the code of the marking, wherein an extrapolated position is determined from the stored positions and the instant of the recording and, in turn, a coding pattern to be compared in relation to the recording is calculated by inverting the algorithm.
    Type: Application
    Filed: April 13, 2016
    Publication date: October 6, 2016
    Applicant: CEDES AG
    Inventors: Michael SCHATT, Marco GRAF
  • Publication number: 20160275328
    Abstract: In order to increase safety, a computer-implemented method is proposed for determining the position of a lift cabin in a lift shaft with the aid of a coding device, wherein a section of the code band and/or of the bearing device is recorded with an optical detection device as a pixel image consisting of pixels and the instant of the recording being measured and assigned to the pixel image, wherein the position is determinable analytically from position markers of the code band by way of an algorithm and wherein at least one checking method which uses, inter alia, a calculated extrapolated position is carried out.
    Type: Application
    Filed: April 13, 2016
    Publication date: September 22, 2016
    Applicant: CEDES AG
    Inventors: Michael SCHATT, Marco GRAF
  • Publication number: 20160272459
    Abstract: A computer-implemented method for determining the position of a lift cabin in a lift shaft with the aid of a coding device, in which method is at least one of a section of the code band and the bearing device is recorded with an optical detection device as a pixel image in which the pixel image is larger than the position marker, the pixel image is processed and a binary code is decoded by means of an algorithm and converted into a position indication, a checksum of the position marker, which is formed by at least one of the binary code and grayscale values of the position marker, is compared to a predetermined value, and one of a barcode and a 2D code calculated from the position indication using an inverse of the algorithm and is compared with at least one recorded row outside of the position marker.
    Type: Application
    Filed: April 8, 2016
    Publication date: September 22, 2016
    Applicant: CEDES AG
    Inventors: Michael SCHATT, Marco GRAF
  • Patent number: 9359170
    Abstract: In order to increase safety, a computer-implemented method is proposed for determining the position of a lift cabin in a lift shaft with the aid of a coding device, in which method a section of a code band and/or of the bearing device is/are recorded with an optical detection device as a pixel image consisting of pixels, a reference marking analysis is carried out, the pixel image is processed, in particular is assigned to a detection grid, pixels of the pixel image are preferably combined with the aid of their color and/or position in order to be able to read out the barcode and/or 2D code of the marking, the barcode and/or 2D code is converted to a binary code, the binary code is decoded by means of an algorithm and is converted into a position indication and/or into information as to whether a bearing device has been detected.
    Type: Grant
    Filed: May 21, 2014
    Date of Patent: June 7, 2016
    Assignee: Cedes AG
    Inventors: Michael Schatt, Marco Graf
  • Publication number: 20150290367
    Abstract: A medical drainage tube for treating wounds with negative pressure includes a suction tube, a suction connector, and a ventilation sleeve. The suction tube comprises a suction lumen, and a ventilation lumen comprising a lumen outer wall and an opening. The ventilation sleeve is arranged at the opening to surround the suction tube. The ventilation sleeve comprises a sleeve wall comprising a sleeve inner wall arranged towards the suction tube, an annular groove arranged in the sleeve inner wall, a filter compartment arranged in the sleeve wall, a bacterial filter arranged in the filter compartment, and an air inlet arranged in the filter compartment. The annular groove communicates with the opening. The bacterial filter communicates with the annular groove. The air inlet connects the bacterial filter with the atmosphere. A part of the ventilation lumen between the annular groove and a proximal end of the suction tube is sealed off.
    Type: Application
    Filed: August 15, 2013
    Publication date: October 15, 2015
    Applicant: ASSKEA GMBH
    Inventors: Sven Hertwig, Marco Graf
  • Patent number: 9082816
    Abstract: A semiconductor mounting apparatus has a dispensing station configured to dispense adhesive portions to the substrate locations of a substrate, a bonding station configured to place semiconductor chips on the substrate locations and a transport device configured to transport the substrates along a transport path. The transport device includes a buffer station disposed between the dispensing station and the bonding station. The buffer station is configured to temporarily remove a substrate which is to be transported from the dispensing station to the bonding station, or in reverse direction, from the transport path so that another substrate can be transported by the transport device from the bonding station to the dispensing station, or in reverse direction, respectively.
    Type: Grant
    Filed: July 2, 2012
    Date of Patent: July 14, 2015
    Assignee: ESEC AG
    Inventors: Marco Graf, Dominik Hartmann, Juergen Stuerner
  • Publication number: 20150102097
    Abstract: In order to increase safety, a computer-implemented method is proposed for determining the position of a lift cabin in a lift shaft with the aid of a coding device, in which method a section of a code band and/or of the bearing device is/are recorded with an optical detection device as a pixel image consisting of pixels, a reference marking analysis is carried out, the pixel image is processed, in particular is assigned to a detection grid, pixels of the pixel image are preferably combined with the aid of their color and/or position in order to be able to read out the barcode and/or 2D code of the marking, the barcode and/or 2D code is converted to a binary code, the binary code is decoded by means of an algorithm and is converted into a position indication and/or into information as to whether a bearing device has been detected.
    Type: Application
    Filed: May 21, 2014
    Publication date: April 16, 2015
    Applicant: Cedes AG
    Inventors: Michael SCHATT, Marco GRAF
  • Patent number: 8952597
    Abstract: A method for operating an output stage for a piezoactuator includes checking, during an operating phase, in response to the undershooting of a current for the piezoactuator below a setpoint current, whether a point in time for the undershooting lies outside or within a time window. A subsequent current pulse is controlled via the setpoint current if the point in time is located outside the time window, and the subsequent current pulse is controlled via a turn-on time if the point in time is located within the time window.
    Type: Grant
    Filed: January 5, 2010
    Date of Patent: February 10, 2015
    Assignee: Robert Bosch GmbH
    Inventors: Stefan Fuchs, Marco Graf
  • Patent number: 8550056
    Abstract: An electric circuit for triggering a piezoelectric element, in particular of a fuel injection system of a motor vehicle. Two transistors connected in series and triggerable using a clock pulse are provided, whose shared connecting point is coupled to the piezoelectric element and one of which is provided for discharging the piezoelectric element. In the event of an error, the transistor provided for discharging can be triggered using the clock pulse.
    Type: Grant
    Filed: October 20, 2005
    Date of Patent: October 8, 2013
    Assignee: Robert Bosch GmbH
    Inventors: Marco Graf, Joerg Reineke
  • Patent number: 8525488
    Abstract: A method and device for charging and/or discharging a capacitive element. A controllable switch is driven to interrupt the charging current when the charging current exceeds a predetermined charging-current threshold. The charging-current threshold is altered while the capacitive element is being charged to the predefined charging voltage. The controllable switch is driven again for coupling the charging current into the capacitive element if a predefined period of time after a previous activation of the controllable switch has elapsed, and/or in case the charging current drops below the predetermined charging-current threshold. A discharging process is carried out correspondingly.
    Type: Grant
    Filed: March 12, 2008
    Date of Patent: September 3, 2013
    Assignee: Robert Bosch GmbH
    Inventors: Stefan Fuchs, Marco Graf
  • Publication number: 20130008599
    Abstract: A semiconductor mounting apparatus has a dispensing station configured to dispense adhesive portions to the substrate locations of a substrate, a bonding station configured to place semiconductor chips on the substrate locations and a transport device configured to transport the substrates along a transport path. The transport device includes a buffer station disposed between the dispensing station and the bonding station. The buffer station is configured to temporarily remove a substrate which is to be transported from the dispensing station to the bonding station, or in reverse direction, from the transport path so that another substrate can be transported by the transport device from the bonding station to the dispensing station, or in reverse direction, respectively.
    Type: Application
    Filed: July 2, 2012
    Publication date: January 10, 2013
    Applicant: ESEC AG
    Inventors: Marco Graf, Dominik Hartmann, Juergen Stuerner
  • Patent number: 8237428
    Abstract: A circuit system for detecting a time-variable amplitude via an electric potential-difference to be detected. A first potential-difference detection device for detecting the at least one electric potential-difference and for outputting a first potential-difference signal, and a second potential-difference detection device for detecting the at least one electric potential-difference and for outputting a second potential-difference signal are provided. The first potential-difference detection device has a higher time resolution than the second potential-difference detection device, while the second potential-difference detection device has a higher amplitude resolution than the first potential-difference detection device.
    Type: Grant
    Filed: March 12, 2008
    Date of Patent: August 7, 2012
    Assignee: Robert Bosch GmbH
    Inventors: Stefan Fuchs, Marco Graf
  • Publication number: 20120032556
    Abstract: A method for operating an output stage for a piezoactuator includes checking, during an operating phase, in response to the undershooting of a current for the piezoactuator below a setpoint current, whether a point in time for the undershooting lies outside or within a time window. A subsequent current pulse is controlled via the setpoint current if the point in time is located outside the time window, and the subsequent current pulse is controlled via a turn-on time if the point in time is located within the time window.
    Type: Application
    Filed: January 5, 2010
    Publication date: February 9, 2012
    Inventors: Stefan Fuchs, Marco Graf
  • Publication number: 20110248701
    Abstract: A circuit system for detecting a time-variable amplitude via an electric potential-difference to be detected. A first potential-difference detection device for detecting the at least one electric potential-difference and for outputting a first potential-difference signal, and a second potential-difference detection device for detecting the at least one electric potential-difference and for outputting a second potential-difference signal are provided. The first potential-difference detection device has a higher time resolution than the second potential-difference detection device, while the second potential-difference detection device has a higher amplitude resolution than the first potential-difference detection device.
    Type: Application
    Filed: March 12, 2008
    Publication date: October 13, 2011
    Inventors: Stefan Fuchs, Marco Graf
  • Patent number: 7705604
    Abstract: An electric circuit for triggering a piezoelectric element, a fuel injection system of a motor vehicle in particular, is described. A first measuring shunt connected in series to the piezoelectric element is provided. Provided are two transistors connected in series whose shared connecting point is connected to the piezoelectric element. A second measuring shunt is also provided. The two transistors and the second measuring shunt are connected in series.
    Type: Grant
    Filed: October 20, 2005
    Date of Patent: April 27, 2010
    Assignee: Robert Bosch GmbH
    Inventors: Marco Graf, Joerg Reineke, Mirko Schinzel